Positive trends in global education access are expected to decrease dementia prevalence worldwide by 6.2 million cases by the year 2050. Meanwhile, anticipated trends in smoking, high body mass index and high blood sugar are predicted to increase prevalence by nearly the same number: 6.8 million cases. Both according to new global prevalence data reported at the Alzheimer's Association International Conference® (AAIC®) 2021 in Denver and virtually.
New research conducted in monkeys reveals that T cells are not critical for the recovery of primates from acute COVID-19 infections.
University of Washington scientists have developed a statistical framework that incorporates key COVID-19 data -- such as case counts and deaths due to COVID-19 -- to model the true prevalence of this disease in the United States and individual states. Their approach projects that in the U.S. as many as 60% of COVID-19 cases went undetected as of March 7, 2021, the last date for which the dataset they employed is available.
Survival rates for adolescents and young adults diagnosed with cancer have varied considerably depending on cancer type. A new study indicates that survival for multiple cancer types in such patients has improved in recent years, but some patients diagnosed with common cancer types still show limited survival improvements. The results are published by Wiley early online in CANCER, a peer-reviewed journal of the American Cancer Society.
Adolescents who set goals for their future and those with strong parental support are less likely to use e-cigarettes and other tobacco products, according to a new survey of nearly 2,500 high school students. The findings suggests that strategies to prevent youth vaping may be different from what works to dissuade youth from smoking cigarettes.
Canada should anticipate a resurgence of a childhood respiratory virus as COVID-19 physical distancing measures are relaxed, authors warn in CMAJ (Canadian Medical Association Journal) https://www.cmaj.ca/lookup/doi/10.1503/cmaj.210919.
How early is the course of COVID-19, mild or severe, determined? In Cell, researchers examined nasal cells sampled from patients at the time of diagnosis, looking for differences between those who developed severe disease and those who experienced a mild illness. Cells from patients who developed severe COVID-19 exhibited a more muted antiviral response. If the early stages of infection can determine disease severity, it opens a path for scientists to develop early therapeutic interventions.
The rapid spread of the Alpha variant of COVID-19 in the UK resulted from biological changes in the virus and was enhanced by large numbers of infected people 'exporting' the variant around the country, in what the researchers call a 'super-seeding' event.
Transplanting hematopoietic stem cells to treat cancers and other conditions carries with it the risk of developing cardio-cerebrovascular diseases (CCVD)--disorders affecting the blood vessels of the heart and brain. Although research on post-transplant CCVD is extensive, there is paucity of knowledge on the effects of pre-transplant CCVD on transplant outcomes. Now researchers in China suggest pre-transplant CCVD indirectly affects patient mortality and survival following transplant through their strong association with post-transplant CCVD.
Researchers have found that omega-3 levels in blood erythrocytes are very good mortality risk predictors. The study used data from a long-term study group, the Framingham Offspring Cohort, which has been monitoring residents of this Massachusetts town, in the United States, since 1971 and concludes that "Having higher levels of these acids in the blood, as a result of regularly including oily fish in the diet, increases life expectancy by almost five years",